Thank you! Yeah, that's ugly, but that's great :)
On Feb 10, 10:20 pm, Y2i <yur...@gmail.com> wrote:
> It's ugly but it works. If you have a better workaround please share.
>
> The idea is instead of querying for List<ContactProxy> you query for
> List<ContactWrapperProxy>.
> Then you call ContactWrapper.getPersonContact(). If it returns non-null
> value then it's a person.
> Otherwise you call ContactWrapper.getCompanyContact() and repeat the check.
>
> Server:
>
> class ContactWrapper {
> private PersonContact personContact;
> private CompanyContact companyContact;
>
> // returns null if not a PersonContact
> public PersonContact getPersonContact() { return personContact; }
> public void setPersonContact(PersonContact personContact) {
> this.personContact = personContact; }
> // returns null if not a CompanyContact
> public CompanyContact getCompanyContact() { return companyContact; }
> public void setCompanyContact(CompanyContact companyContact) {
> this.companyContact = companyContact; }
>
> }
>
> class SomeService {
> public static List<ContactWrapper> queryContracts() {
> final List<Contact> contacts = // polymorphic JPA query
> final List<ContactWrapper> ret = new
> ArrayList<ContactWrapper>(contacts.size());
> for(Contact c : contacts) {
> final ContactWrapper w = new ContactWrapper();
> if(contact intanceof CompanyContact) {
> w.setCompanyContact((CompanyContact)c)
> }
> else if(contact intanceof PersonContact) {
> w.setPersonContact((PersonContact)c)
> }
> ret.add(w);
> }
> return ret;
> }
>
> }
>
> Client:
> @ProxyFor(ContactWrapper.class)
> interface ContactWrapperProxy extends ValueProxy (
> PersonContactProxy getPersonContact();
> CompanyContact getCompanyContact();
>
> }
>
> @Service(SomeService.class)
> interface SomeServiceRequest exntends RequestContext {
> // return List<ContactWrapperProxy> instead of List<ContactProxy>
> List<ContactWrapperProxy> queryContracts();
>
> }
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